raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:228169

Autosomal dominant striatal neurodegeneration

Synonyms: ADSD

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Adult
Status
active

An adult-onset movement disorder characterized by bradykinesia, dysarthria and muscle rigidity.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAutosomal dominant striatal neurodegenerationADSD
frNeurodégénérescence striatale autosomique dominante= en
deNeurodegeneration, striatale, autosomal-dominante= en
esNeurodegeneración estriatal autosómica dominante= en
itNeurodegenerazione striatale autosomica dominante= en
nlAutosomaal dominante striatale neurodegeneratie= en
ptNeurodegenerescência do estriado autossómica dominante
plAutosomalna dominująca neurodegeneracja prążkowia= en
csAutozomálně dominantní striatová neurodegenerace= en
ukАутосомно-домінантна стриарна нейродегенерація= en
zh常染色体显性遗传纹状体神经变性= en
trOtozomal dominant striatal nörodejenerasyon= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM609161Evalidated
ICD-10G31.8NTBTattributedvalidated
MONDO0000211Evalidated
UMLSC4511004Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (2):

No children.

4

Genes

1 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
PDE8BDisease-causing germline mutation(s) inAssessedHGNC:8794ENSG000001132316033905q13.3phosphodiesterase 8B20085714[PMID]
5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families5 familiesWorldwideFamily(ies)Validated38818539[PMID]
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET_15210883[PMID]_26769607[PMID]_26475694[PMID]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

7 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0100022Abnormality of movement
HP:0002067Bradykinesia
HP:0001260Dysarthria
HP:0002075Dysdiadochokinesis
HP:0002063Rigidity
Frequent (79-30%)
HP:0002015Dysphagia
HP:0001288Gait disturbance

Run the differential on the 5 obligate / very frequent terms

7

Sources for this card